FIELD: radio engineering, communication.
SUBSTANCE: embodiment of the present invention provides a method, user equipment and a base station for determining a timing advance, which can support a larger cell radius without changing the protocol, the required device complexity is low, and with the UE side transmitting msg3 by using different TA adjustments to obtain a correct timing deviation value, the access delay of the physical random access channel (PRACH) is minimised, and the overhead of the PRACH subframe will not increase in the present invention.
EFFECT: preventing the deterioration of the system performance, and the invention can be applied to TDD and FDD duplex transmission systems simultaneously.
16 cl, 6 dwg, 1 tbl
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